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True [87]
2 years ago
12

Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to

go for a run later this afternoon. Rosa is breathing normally.What does she need from the food she ate and the air she breathes so that she can go on her run? How do Rosa’s body systems work together to get the molecules she needs into her cells? How do her cells use these molecules to release energy for her body to run?​
Chemistry
2 answers:
erastovalidia [21]2 years ago
8 0

Answer:1 2 look at my shoe 3 4

Explanation:so this is the gamer move

BabaBlast [244]2 years ago
7 0

Answer:

1) Rosa needs glucose from the food she ate and oxygen from the air she breathes

2) She firstly undergird digestion, which breaks down the food into glucose. The glucose is absorbed by each cell

3) Her cells produce energy via the process of cellular respiration

Explanation:

To perform any activity, cellular energy in form of ATP is needed. However, this energy is derived via a process called CELLULAR RESPIRATION, which uses the products of digestion of the food we eat and oxygen.

According to this question, Rosa eats a peanut butter sandwich for lunch and plans to go for a run later in the afternoon.

1) To get energy which is needed for her run, Rosa needs glucose from the peanut butter sandwich she ate and oxygen from the air she is breathing to synthesize this energy.

2) The peanut butter sandwich first undergoes digestion i.e. breakdown into glucose, which is then absorbed by her cells in order to use. Oxygen from air is taken in by the lungs and diffused into her cells. In a nutshell, digestive system and respiratory system works together to carry out this task.

3) The cells use the oxygen and glucose in a process called CELLULAR RESPIRATION to produce energy (ATP). This occurs in three stages namely: glycolysis (occurs in the cytoplasm), Krebs cycle and oxidative phosphorylation, which both occurs in the mitochondria.

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Populations for whom water is a limiting factor will increase in size.

Explanation:

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3 years ago
which object would have more potential energy a bowling ball stored on a high shelf in a closet or a baseball on the same shelf?
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Explanation:

Potential energy mathematically is P = m×g×h.

Where m= mass of the ball, g= acceleration. due to gravity which is constant

and h= the height which is also same.

Since, a bowling ball has more mass than a baseball, therefore, its potential energy would be higher generally.

A baseball is more likely to fall on your head because of its round shape.

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3 years ago
In a synthesis reation you stat with 1.7L of hydrogen how many liters of water will be produced?
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check the answer in Google.

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3 years ago
A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1". KOH + Cu(NO3)2 → KNO
svet-max [94.6K]

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5 0
3 years ago
In the background information, it was stated that CaF2 has solubility, at room temperature, of 0.00160 g per 100 g of water. How
____ [38]

Answer:

2.05*10⁻⁵ moles of CF₂ can dissolve in 100 g of water.

12.82 moles of CaF₂ will dissolve in exactly 1.00 L of solution

Explanation:

First, by definition of solubility, in 100 g of water there are 0.0016 g of CaF₂. So, to know how many moles are 0.0016 g, you must know the molar mass of the compound. For that you know:

  • Ca: 40 g/mole
  • F: 19 g/mole

So the molar mass of CaF₂ is:

CaF₂= 40 g/mole + 2*19 g/mole= 78 g/mole

Now you can apply the following rule of three: if there are 78 grams of CaF₂ in 1 mole, in 0.0016 grams of the compound how many moles are there?

moles=\frac{0.0016 grams*1 mole}{78 grams}

moles=2.05*10⁻⁵

<u><em>2.05*10⁻⁵ moles of CF₂ can dissolve in 100 g of water.</em></u>

Now, to answer the following question, you can apply the following rule of three: if by definition of density in 1 mL there is 1 g of CaF₂, in 1000 mL (where 1L = 1000mL) how much mass of the compound is there?

mass of CaF_{2}=\frac{1000 mL*1g}{1mL}

mass of CaF₂= 1000 g

Now you can apply the following rule of three: if there are 78 grams of CaF₂ in 1 mole, in 1000 grams of the compound how many moles are there?

moles=\frac{1000 grams*1 mole}{78 grams}

moles=12.82

<u><em>12.82 moles of CaF₂ will dissolve in exactly 1.00 L of solution</em></u>

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3 years ago
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